A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages 





Impact:


An attacker may trick authenticated BIG-IP users
into accessing malicious links and reflect a spoofed error message in
the victim's BIG-IP Configuration utility web browser session. This is a
control plane issue; there is no data plane exposure.





Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Project Subscriptions

Vendors Products
Big-ip Access Policy Manager Subscribe
Big-ip Advanced Firewall Manager Subscribe
Big-ip Advanced Web Application Firewall Subscribe
Big-ip Analytics Subscribe
Big-ip Application Acceleration Manager Subscribe
Big-ip Application Security Manager Subscribe
Big-ip Application Visibility And Reporting Subscribe
Big-ip Automation Toolchain Subscribe
Big-ip Carrier-grade Nat Subscribe
Big-ip Container Ingress Services Subscribe
Big-ip Ddos Hybrid Defender Subscribe
Big-ip Domain Name System Subscribe
Big-ip Edge Gateway Subscribe
Big-ip Fraud Protection Service Subscribe
Big-ip Global Traffic Manager Subscribe
Big-ip Link Controller Subscribe
Big-ip Local Traffic Manager Subscribe
Big-ip Policy Enforcement Manager Subscribe
Big-ip Ssl Orchestrator Subscribe
Big-ip Webaccelerator Subscribe
Big-ip Websafe Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

To mitigate this vulnerability, you may take the following actions: When you have finished using the BIG-IP Configuration utility, you should log off and close all instances of your web browser. Do not use the same web browser that you use to manage the BIG-IP Configuration utility for any other purposes, such as browsing the internet. If you must perform both actions on the same client machine, F5 recommends that you do so in separate browsers

History

Tue, 15 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
First Time appeared F5 big-ip Access Policy Manager
F5 big-ip Advanced Firewall Manager
F5 big-ip Advanced Web Application Firewall
F5 big-ip Analytics
F5 big-ip Application Acceleration Manager
F5 big-ip Application Security Manager
F5 big-ip Application Visibility And Reporting
F5 big-ip Automation Toolchain
F5 big-ip Carrier-grade Nat
F5 big-ip Container Ingress Services
F5 big-ip Ddos Hybrid Defender
F5 big-ip Domain Name System
F5 big-ip Edge Gateway
F5 big-ip Fraud Protection Service
F5 big-ip Global Traffic Manager
F5 big-ip Link Controller
F5 big-ip Local Traffic Manager
F5 big-ip Policy Enforcement Manager
F5 big-ip Ssl Orchestrator
F5 big-ip Webaccelerator
F5 big-ip Websafe
CPEs cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_automation_toolchain:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_container_ingress_services:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_websafe:*:*:*:*:*:*:*:*
Vendors & Products F5 big-ip Access Policy Manager
F5 big-ip Advanced Firewall Manager
F5 big-ip Advanced Web Application Firewall
F5 big-ip Analytics
F5 big-ip Application Acceleration Manager
F5 big-ip Application Security Manager
F5 big-ip Application Visibility And Reporting
F5 big-ip Automation Toolchain
F5 big-ip Carrier-grade Nat
F5 big-ip Container Ingress Services
F5 big-ip Ddos Hybrid Defender
F5 big-ip Domain Name System
F5 big-ip Edge Gateway
F5 big-ip Fraud Protection Service
F5 big-ip Global Traffic Manager
F5 big-ip Link Controller
F5 big-ip Local Traffic Manager
F5 big-ip Policy Enforcement Manager
F5 big-ip Ssl Orchestrator
F5 big-ip Webaccelerator
F5 big-ip Websafe

Thu, 03 Sep 2026 10:30:00 +0000

Type Values Removed Values Added
First Time appeared F5
F5 big-ip
Vendors & Products F5
F5 big-ip

Wed, 02 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 02 Sep 2026 10:45:00 +0000

Type Values Removed Values Added
Description A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages  Impact: An attacker may trick authenticated BIG-IP users into accessing malicious links and reflect a spoofed error message in the victim's BIG-IP Configuration utility web browser session. This is a control plane issue; there is no data plane exposure. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Title BIG-IP Configuration utility vulnerability
Weaknesses CWE-451
References
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N'}

cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: f5

Published:

Updated: 2026-09-02T17:55:45.119Z

Reserved: 2026-07-24T22:40:21.245Z

Link: CVE-2026-63020

cve-icon Vulnrichment

Updated: 2026-09-02T17:55:40.635Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-02T16:17:18.400

Modified: 2026-09-15T18:19:18.243

Link: CVE-2026-63020

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T10:15:04Z

Weaknesses